CN215059815U - Integrated burning-resistant fire-retardant breather valve - Google Patents
Integrated burning-resistant fire-retardant breather valve Download PDFInfo
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- CN215059815U CN215059815U CN202121291107.8U CN202121291107U CN215059815U CN 215059815 U CN215059815 U CN 215059815U CN 202121291107 U CN202121291107 U CN 202121291107U CN 215059815 U CN215059815 U CN 215059815U
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 64
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 10
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- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
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- 238000004519 manufacturing process Methods 0.000 description 3
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- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
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- 230000009970 fire resistant effect Effects 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model discloses a resistant back-fire relief breather valve that burns of integral type, this back-fire relief breather valve all are equipped with back-fire relief component in the atmosphere side of vacuum end and pressure end, and this back-fire relief component is including the flame retardant disk and the spark arrester that comprises the integrated ring of flame retardant disk, and the spark arrester is distributed on the integrated ring of flame retardant disk by a plurality of little flame retardant disks annular, and the resistant back-fire relief breather valve that burns of this integral type still is equipped with rain-proof cover, and rain-proof cover is fixed through easily melting component and bolt, spring. Resistant back-fire relief valve that burns of integral type in the back-fire relief valve back-fire relief is favorable to the radiation heat dissipation more, improves the resistant fever ability of back-fire relief valve to rain-proof cover also can be opened in good time, in time dispels the heat, prevents that the high temperature of back-fire relief dish and spark arrester from taking place the tempering, improves the security of storage tank, also improves the online maintenance convenience of back-fire relief valve.
Description
Technical Field
The utility model belongs to back-fire relief and pressure release control technique specifically belong to the breather valve, especially relate to the resistant back-fire relief breather valve that burns of integral type.
Background
In the industrial production process, a fire-retardant breather valve needs to be installed on a storage tank for storing flammable and explosive media and media with lower flash points, and most of the existing fire-retardant breather valves adopt two structures. One of the two is a combined structure, namely a pipeline flame arrester and a pipe end breather valve are connected in series for use, and the pipeline flame arrester is arranged between the inner side of the breather valve and a storage tank; the second one is an integrated structure, namely, a monolithic fire retardant plate is integrated on the atmosphere side so as to achieve the effect of preventing atmosphere deflagration. To the structure of above-mentioned two kinds of current breather valves, pipeline spark arrester and pipe end breather valve combination are established ties and are used, and the spark arrester is between breather valve and jar body, and the spark arrester contacts with jar interior medium all the time, and the back-fire relief dish is blockked up easily. The great pressure difference can be produced around the spark arrester, and this pressure difference leads to jar internal pressure to rise and the breather valve front pressure still can not reach the set pressure, and unable jump has increased the storage tank and has suppressed the pressure and the risk of damage.
On the other hand, when needing to examine the maintenance at breather valve and spark arrester, the back-fire relief breather valve of combination formula need park and empty the jar interior material when examining the maintenance, then dismantle breather valve and spark arrester and hoist to ground respectively, detect the maintenance, examine the cost of maintenance height. In the process of disassembly, the medium in the tank can volatilize into the atmosphere, and the environment is polluted. Flammable and explosive gas can also threaten personal safety, and the risk that the valve falls also exists in the hoisting process.
Furthermore, although the existing integrated fire-retardant breather valve can prevent instantaneous atmospheric deflagration, when combustible gas in the tank is continuously discharged, the existing integrated fire-retardant breather valve cannot prevent long-time combustion on the surface of the fire retardant disc. When the atmosphere detonation happens, the surface of the fire retardant disc on the atmosphere side of the integrated fire retardant breather valve can be burnt due to the combustible gas which is continuously discharged by overpressure in the storage tank, the high temperature and the heat generated by the long-time burning can cause the tempering of the fire retardant disc, and the gas in the storage tank is ignited, so that the storage tank is exploded. The process only needs minutes, even only seconds, so that the design and manufacture of the integrated burning-resistant and fire-retardant breather valve are necessary.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to the not enough problem of above-mentioned current breather valve to back-fire relief and pressure control, the utility model provides a fire-resistant back-fire relief breather valve of burning of integral type.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
The utility model provides a resistant back-fire relief breather valve that burns of integral type, including vacuum end and pressure end, the vacuum end valve core takes off when the vacuum end is negative pressure in the storage tank, pressure end valve core takes off when the pressure end is the interior malleation of storage tank, the vacuum end includes vacuum end valve core and back-fire relief dish, the pressure end includes pressure end valve core and spark arrester, this back-fire relief ware comprises the opening part of a plurality of little fire-fire relief dish ring distributions on back-fire relief dish integration ring, top at pressure end valve core still is equipped with rain-proof cover, rain-proof cover is through fusible component and bolt fastening on the valve body, be equipped with on the bolt and impel the spring that rain-proof cover bounced behind the fusible component.
Furthermore, the vacuum end valve core is sealed under the action of gravity, and the fire retardant disc is positioned on the atmosphere side and arranged on the bottom valve seat of the vacuum end valve core. The pressure end valve core is sealed under gravity, and the flame arrester is located the atmosphere side, sets up on pressure end valve core upper portion valve body.
Furthermore, the fire retardant disc and the fire retardant device are provided with gas channels for atmosphere circulation and pressure balance.
Furthermore, the top is equipped with the mounting panel on the valve body of pressure end, and the spark arrester sets up in the mounting panel middle part, and the spark arrester is held in the space behind mounting panel and the rain-proof cover closure, and the middle part at the spark arrester is fixed to the fusible component one end of connecting the rain-proof cover.
Furthermore, the thickness of the small fire-retardant plate is one half of that of the upper panel of the ring integrated by the fire-retardant plate.
Furthermore, the number of the small fire retardant disks in the fire retardant device is at least 3, the small fire retardant disks are distributed annularly, and the small fire retardant disks on the same ring line have the same size and specification.
Has the advantages that: compared with the prior art, the integrated burning-resistant fire-retardant breather valve is provided with fire-retardant elements at the vacuum end and the pressure end, and the fire retardant device is formed by independently installing small fire-retardant discs in the openings of the integrated ring of the fire-retardant discs, and half of the thickness of each small fire-retardant disc extends out of the upper panel of the integrated ring of the fire-retardant disc; on the other hand, rain-proof cover of resistant back-fire relief breather valve be the connection fixed knot who contains the automatic open-type of fusing metal connection and construct, when the burning takes place for back-fire relief dish atmosphere side, along with the rising of rain-proof cover inside temperature, fusing metal melts, and rain-proof cover is opened under the effect of spring tension, gives off the produced heat of burning and goes in the atmosphere, can guarantee that resistant back-fire relief breather valve can bear the burning for a long time, also can guarantee that combustible gas fully burns, reduces the possibility of tempering.
Drawings
Fig. 1 is a schematic view of an installation structure of the integrated burning-resistant and fire-retardant breather valve of the present invention;
figure 2 is a top view of the flame arrestor of the present invention.
In the figure: 1. rain-proof cover, 2, back-fire relief disc integrated ring, 3, mounting panel, 4, fusible component, 5, spring, 6, little back-fire relief disc, 7, pressure end case, 8, vacuum end case, 9 back-fire relief disc.
Detailed Description
For the purpose of explaining the technical solution disclosed in the present invention in detail, the following description is further made with reference to the accompanying drawings and specific embodiments.
When the storage tank stores flammable and explosive media with low flash points, the balance of the pressure in the storage tank is generally kept by installing a breather valve, and the breather valve needs to perform internal pressure relief when the pressure in the storage tank is higher than the external pressure, namely the pressure in the storage tank is positive, and the pressure relief is controlled by a pressure end valve core; when the pressure in the storage tank is lower than the external atmospheric pressure, namely the pressure in the storage tank is negative, the external atmospheric pressure needs to jack the valve core at the vacuum end, so that the pressure in the storage tank and the atmospheric pressure keep necessary dynamic balance. In the pressure relief process of the storage tank, the medium stored in the storage tank can be released to a certain degree, and particularly for volatile media, the arrangement of a fire retardant disc is one of necessary preventive measures.
The utility model provides a resistant back-fire relief breather valve that burns of integral type, its structure is as shown in figure 1 and figure 2. The valve body of the integrated burning-resistant fire-retardant breather valve is provided with a pressure end and a vacuum end, wherein the pressure end comprises a pressure end valve core 7, and the vacuum end comprises a vacuum end valve core 8. The valve core is tightly attached and sealed with the contacted valve disc seat through the weight of the valve disc.
In this embodiment, the resistant back-fire relief breather valve that burns of integral type is connected with the storage tank, and when internal pressure of jar was less than external atmospheric pressure, production negative pressure in the storage tank, when pressure reached breather valve vacuum end set pressure, vacuum end valve core 8 opened, if take place atmospheric detonation in the twinkling of an eye, then back-fire relief dish 9 can prevent atmospheric detonation. When the storage tank is balanced with the atmospheric pressure, the vacuum end valve core 8 is closed. When jar internal pressure is greater than external atmospheric pressure, forms the malleation in the storage tank, when pressure reached breather valve pressure end set pressure, pressure end valve element 7 upwards opened, and jar internal combustible gas will be discharged to the atmosphere through the spark arrester in case the spark arrester atmospheric side is ignited to when having the combustible gas that lasts to external discharge, will form the long-time stable combustion at back-fire relief dish surface. The flame arrester is that the multiple-disc is annular to be distributed on back-fire relief disc integrated ring 2, and the half thickness of little back-fire relief disc 6 stretches out the upper panel of back-fire relief disc integrated ring 2. Because the gas is discharged to the atmosphere through the small fire-retardant discs 6, the multiple annular plates are arranged to disperse the heat generated by combustion to each small fire-retardant disc 6 during combustion, so that the purpose of uniformly radiating the heat is achieved. If a whole large fire retardant disc is adopted, flame can be concentrated in the center of the fire retardant disc, so that the temperature of the center is rapidly raised, heat is easily transferred to the lower part of the fire retardant disc arranged at the pressure end, and gas in the tank is ignited. At the vacuum end, because be the inspiratory air, so can not take place long-time burning in the practical application, the event does not have the resistant requirement of burning to the back-fire relief disc, and the event sets up back-fire relief disc 9 at the vacuum end in this embodiment, and back-fire relief disc 9 sets up different big or small specifications according to the size of vacuum end breather valve, case, disk seat, realizes the atmosphere intercommunication through the through-hole. At the pressure end, the entire flame arrester is covered by a rain shield 1 and is bolted together by 4 fusible elements. When the temperature continues to rise, the melting point of the fusible element 4 is reached, the rainproof cover 1 is opened instantly under the action of the tension of the spring 5, the burning heat is quickly released into the atmosphere, the burning-resistant fire-retardant breather valve can be guaranteed to burn for a long time, the combustible gas can be guaranteed to be fully burnt, and the possibility of explosion is reduced. Explaining here, the utility model discloses must set up fire arrester and rain-proof cover 1, can realize the transition through mounting panel 3, the central point of mounting panel 3 puts and sets up the fire arrester promptly, holds little fire stopping plate 6 and fire stopping plate integrated ring 2, then rain-proof cover 1 is closed on mounting panel 3, and the size in space is adjusted between rain-proof cover 1 and the fire arrester can be realized through mounting panel 3 to such setting, guarantees to have sufficient space under the condition of taking place the burning, avoids valve body, rain-proof cover etc. because of the harm that the burning takes place etc..
Furthermore, firstly, the structure of the integrated burning-resistant and fire-retardant breather valve in the embodiment is one of the preferable modes. This resistant back-fire relief breather valve that burns of integral type is provided with mounting panel 3 on the upper portion valve body of pressure end valve core 7, mounting panel 3 set up and has cut off pressure end valve core 7 and fire blocking dish firstly, make its both independent mountings and maintenance, the installation of avoiding fire blocking dish simultaneously and the fixed part of rain-proof cover 1 influence the play of pressure end valve core 7 and jump, another effect that mounting panel 3 set up lies in avoiding the direct contact with the valve body of rain-proof cover 1 and spark arrester, if take place sealed contact and also caused outside atmospheric pressure can not be fine and pressure end carry out dynamic balance, there is the influence of certain degree to the control of pressure. Mounting panel 3 is including setting up through-hole or other vent structure, fixes on the upper portion valve body of pressure end, and the right side of mounting panel 3 is equipped with the bolt, is equipped with spring 5 on the bolt, then the bolt again with rain-proof cover 1 installation, installation back spring 5 is compression state, ascending expansion force has the trend of lifting rain-proof cover 1 right. Only one stress point of the rain cover 1 is fixed through a bolt, the rain cover 1 is further fixed through the fusible element 4, and the fixed point of the fusible element 4 in fig. 1 is located at the center of the top of the mounting plate 3 and the rain cover 1. It should be noted that, in actual operation, a plurality of installation fixing points may also be set according to the size of the storage tank and the specification of the rain cover 1, including setting a plurality of bolts and springs on one side, and also including setting the fusible element 4 on the left side or other positions in fig. 1. In figure 1, the lower part of the valve core 8 at the vacuum end is also provided with a fire retardant disc 9 at the atmosphere side, the fire retardant disc 9 can be consistent with a structure of a flame arrester at the pressure end, the number of small fire retardant discs can be inconsistent, the vacuum end is used for atmospheric pressure to enhance in the storage tank, and gas enters the storage tank, so that the number of the small fire retardant discs 6 in the flame arrester can be reduced according to actual conditions so as to optimize the structure and the manufacturing cost of the breather valve, but the technical personnel in the field can consider the structure which is consistent with the pressure end from the safety angle.
The vacuum end does not set up rain-proof cover 1 in figure 1, as another kind of implementation structure, the vacuum end can set up rain-proof cover 1 and avoid rainwater and breather valve life and rivers to flow along the influence that the spark arrester caused along the valve body surface, also can prevent the influence that other debris or birds worm etc. construct to the vacuum end knot through setting up rain-proof cover 1 or preventing the bird net.
The overlooking structure of the flame arrester, which is illustrated in fig. 2 and is exemplified by a pressure end, includes a plurality of small flame retardant discs 6 on the flame arrester, the small flame retardant discs 6 are annularly distributed on the flame retardant disc integrated ring 2, and the thickness of the upper panel is higher than that of the flame retardant disc integrated ring 2, and the upper panel can be fixed in a parallel line manner or in other existing movable connection manners, it should be noted that, as an optimization, the shape of the flame retardant discs can be adjusted in other manners according to the shape of the storage tank, for example, the storage tank is a rectangular opening or other geometric shapes, and the shape of the flame arrester and the distribution of the small flame retardant discs 6 can be selected in other manners.
Resistant fever back-fire relief breather valve of integral type adopt be the integral type structure, through the valve body with vacuum end and the integrated integration of pressure end, in addition, the spark arrester is reserved to the valve body, the installation position of mounting panel 3 and rain-proof cover 1, what fusible component 4 adopted is fusible metal material or other alloy material, melting that can be rapid when taking place the burning phenomenon, the heat-sinking capability that improves the spark arrester realizes resistant fever effect, the back-fire relief dish of pressure end and vacuum end all sets up in the atmosphere side, can directly dismantle, improve the convenience of overhauing and maintaining, the annular setting of back-fire relief small plate also is the structure that is favorable to radiation heat dissipation in the back-fire relief dish, the resistant fever back-fire relief breather valve of integral type back-fire relief compare prior art safe and reliable more.
Claims (7)
1. The utility model provides a resistant back-fire relief breather valve that burns of integral type, includes vacuum end and pressure end, vacuum end case (8) take off when the vacuum end is the interior negative pressure of storage tank, pressure end case (7) take off when the pressure end is the interior malleation of storage tank, its characterized in that: the vacuum end includes vacuum end case (8) and back-fire relief dish (9), and the pressure end includes pressure end case (7) and spark arrester, and this spark arrester comprises a plurality of little opening parts that block fire dish (6) annular distribution on back-fire relief dish integration ring (2), still is equipped with rain-proof cover (1) at the top of pressure end case (7), and rain-proof cover (1) is fixed on the valve body through fusible component (4) and bolt, is equipped with spring (5) that make rain-proof cover (1) bounce after fusible component (4) fusing on the bolt.
2. The integrated burn-resistant and fire-retardant breather valve of claim 1, wherein: the vacuum end valve core (8) is sealed under the action of gravity, and the fire blocking disc (9) is positioned on the atmosphere side and arranged on the bottom valve seat of the vacuum end valve core (8).
3. The integrated burn-resistant and fire-retardant breather valve of claim 1, wherein: the pressure end valve core (8) is sealed under gravity, and the flame arrester is positioned on the atmosphere side and arranged on the upper valve body of the pressure end valve core (7).
4. The integrated burn-resistant and fire-retardant breather valve of claim 1, wherein: the fire-resisting disc (9) and the fire arrestor are provided with gas channels for atmosphere circulation and pressure balance.
5. The integrated burn-resistant and fire-retardant breather valve of claim 1, wherein: the top is equipped with mounting panel (3) on the valve body of pressure end, and the spark arrester sets up in mounting panel (3) middle part, and the spark arrester is held in the space behind mounting panel (3) and rain-proof cover (1) closure, and fusible component (4) one end of connecting rain-proof cover (1) is fixed at the middle part of spark arrester.
6. The integrated burn-resistant and fire-retardant breather valve of claim 1, wherein: the thickness of the small fire-retardant plate (6) is half of that of the upper panel of the fire-retardant plate integrated ring (2).
7. The integrated burn-resistant and fire-retardant breather valve of claim 1, wherein: the number of the small fire retardant discs (6) in the fire retardant device is at least 3, the small fire retardant discs are distributed annularly, and the small fire retardant discs (6) on the same ring line have the same size and specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121291107.8U CN215059815U (en) | 2021-06-09 | 2021-06-09 | Integrated burning-resistant fire-retardant breather valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121291107.8U CN215059815U (en) | 2021-06-09 | 2021-06-09 | Integrated burning-resistant fire-retardant breather valve |
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| CN215059815U true CN215059815U (en) | 2021-12-07 |
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| CN202121291107.8U Active CN215059815U (en) | 2021-06-09 | 2021-06-09 | Integrated burning-resistant fire-retardant breather valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593248A (en) * | 2022-02-18 | 2022-06-07 | 徐州八方安全设备有限公司 | Integrated long-time-combustion-resistant fire-retardant breather valve |
| CN114739656A (en) * | 2022-03-01 | 2022-07-12 | 江苏复森特种阀门有限公司 | An integrated anti-overflow fire-stop breathing valve performance test system |
| CN116293007A (en) * | 2021-12-21 | 2023-06-23 | 中国石油化工股份有限公司 | A fire-resistant breathing valve device for a storage tank |
-
2021
- 2021-06-09 CN CN202121291107.8U patent/CN215059815U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116293007A (en) * | 2021-12-21 | 2023-06-23 | 中国石油化工股份有限公司 | A fire-resistant breathing valve device for a storage tank |
| CN114593248A (en) * | 2022-02-18 | 2022-06-07 | 徐州八方安全设备有限公司 | Integrated long-time-combustion-resistant fire-retardant breather valve |
| CN114739656A (en) * | 2022-03-01 | 2022-07-12 | 江苏复森特种阀门有限公司 | An integrated anti-overflow fire-stop breathing valve performance test system |
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